聚酯聚醚嵌段共聚型亲水整理剂PPBC的应用研究

采用对苯二甲酸二甲酯(DMT)、乙二醇(EG)和聚乙二醇(PEG),通过酯交换、缩聚反应合成一定分子量的聚酯聚醚嵌段共聚型亲水整理剂PPBC,并应用于在涤纶织物亲水舒适整理,同时讨论PEG分子量对亲水整理剂PPBC亲水性能的影响。结果表明,经过亲水整理剂PPBC整理的织物亲水性、易去污和抗静电性得到明显的改善,并具有一定的耐洗性;与同类或其它类亲水整理剂相比,其具有较好的亲水性。

聚酯聚醚和聚氨酯类吸湿排汗助剂在涤氨弹性织物中的应用

采用浸渍-浸轧两步法,先用2%(omf)聚酯聚醚类吸湿排汗助剂在聚酯纤维表面交联,再利用20 g/L聚氨酯类吸湿排汗助剂通过与裸露的聚酯聚醚类整理剂的聚醚嵌段结合形成一层膜,赋予聚酯织物优异的吸湿速干性能(洗前0.38 g/h,30次水洗后为0.33 g/h)和耐洗性,同时还可改善织物的抗起毛起球性能(由3~4级提升至4~5级),且不影响耐皂洗色牢度。

嵌有长聚醚软段液晶共聚酯的合成

本文用对苯二甲酰氯、对苯二酚、己二醇及分子量为1000或2000的聚丁二醇醚,经溶液缩聚制备了嵌段聚醚聚酯,其介晶单元含量只为21.2重量％(或37.5mol％)即可在宽的温度范围内呈现明显的液晶性.~1H-NMR谱表明,产物的聚酯段呈嵌段微观序列分布.

聚酯─聚醚热塑弹性体简介

简单介绍了热塑弹性体的概念，以及聚酯一聚醚热塑弹性体的结构、性能、应用及发展前景．

吸湿排汗助剂的合成及最佳整理工艺探索

以对苯二甲酸二甲酯、乙二醇和聚乙二醇1540为主要原料,采用酯交换、缩聚反应合成纺织整理材料。探讨了助剂浓度、浸泡温度、浸泡时间、固化温度和盐浓度对吸湿排汗助剂整理工艺中的吸吸湿性的影响。得出最佳整理条件:助剂浓度为25 g/L,浸泡温度为35℃,浸泡时间为15 min,固化温度为190℃和盐浓度为1.2%。此时助剂的吸水率达到最高值。

Pyrolysis-Gas Chromatography/Mass Spectrometry for Microstructure and Pyrolysis Pathway of Polyester-Polyether Multiblock Copolymer

The composition and sequence distribution of monomeric units in polyester polyether multiblock copolymer were studied by pyrolysis? gas chromatography (PGC) and pyrolysis gas chromatography/mass spectrometry (PGC/MS). PGC was applied to study the F t curve of the multiblock copolymer and PGC/MS was used to separate and identify the pyrolyzates. DTA experiment was used to study the decomposition temperature. The results show that the beginning point of elastomer’s decomposition was about 300?℃ and the decomposition temperature of most of the sample was 550?℃. Many pyrolyzates were produced because of the breaking of weak bonds in the sample. The possible microstructure was verified and the pyrolysis pathway of the copolymer was investigated.